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From: Chuck Ebbert <76306.1226@compuserve.com>
To: linux-kernel <linux-kernel@vger.kernel.org>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Subject: balance_pgdat(): where is total_scanned ever updated?
Date: Sat, 6 Nov 2004 14:15:57 -0500	[thread overview]
Message-ID: <200411061418_MC3-1-8E17-8B6C@compuserve.com> (raw)

Kernel version is 2.6.9, but I see no updates to this function in BK-current.
How is total_scanned ever updated?  AFAICT it is always zero.

In mm/vmscan.c:balance_pgdat(), there are these references to total_scanned
(missing whitepace indicated by "^"):


 977:        int total_scanned, total_reclaimed;

 983:        total_scanned = 0;

1076:                        if (total_scanned > SWAP_CLUSTER_MAX * 2 &&
1077:                            total_scanned > total_reclaimed+total_reclaimed/2)
                                                               ^ ^             ^ ^

1088:                if (total_scanned && priority < DEF_PRIORITY - 2)


Could this be part of the problems with reclaim?  Or have I missed something?


--Chuck Ebbert  06-Nov-04  14:15:21

             reply	other threads:[~2004-11-06 19:18 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-11-06 19:15 Chuck Ebbert [this message]
2004-11-07  0:11 ` balance_pgdat(): where is total_scanned ever updated? Andrew Morton
2004-11-09 10:42   ` Marcelo Tosatti
2004-11-09 19:36     ` Andrew Morton
2004-11-09 18:02       ` Marcelo Tosatti
2004-11-09 21:40         ` Andrew Morton
2004-11-09 18:52           ` Marcelo Tosatti
2004-11-09 22:40             ` Andrew Morton
2004-11-10 13:24             ` Nikita Danilov
  -- strict thread matches above, loose matches on Subject: below --
2004-11-07  5:02 Chuck Ebbert
2004-11-10  3:34 Chuck Ebbert

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